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Hi there, It's a delusion that 30x redirects can lead to PageRank loss. This has now been confirmed multiple times by Gary Illyes and John Mueller. As long as you properly implement a 301 redirect, there shouldn't be any issues.

You can optimize and create your landing page content however you see fit. If you want to optimize the content for more than one keyword, go ahead! The most important thing to remember is not to overstuff your content with keywords—but utilizing multiple keywords can definitely help this. Before focusing on very specific keywords that you think are the most important for the industry, make sure that these are the keywords that people are actually searching. You should be writing content that attracts and helps users. You need to write for what they want to hear, not necessarily what you want to share.